| Olecko to Sangeorz-Bai | 470.11 mi (756.57 km) |
| Olecko to Sannicolau Mare | 556.93 mi (896.29 km) |
| Olecko to Santana | 532.69 mi (857.28 km) |
| Olecko to Satu Mare | 431.70 mi (694.76 km) |
| Olecko to Scobinti | 498.50 mi (802.25 km) |
| Olecko to Scornicesti | 660.27 mi (1,062.60 km) |
| Olecko to Sebes | 559.81 mi (900.93 km) |
| Olecko to Seini | 435.63 mi (701.07 km) |
| Olecko to Sfantu-Gheorghe | 582.92 mi (938.12 km) |
| Olecko to Sibiu | 574.04 mi (923.84 km) |
| Olecko to Sighetu Marmatiei | 426.10 mi (685.74 km) |
| Olecko to Sighisoara | 549.44 mi (884.23 km) |
| Olecko to Simeria | 565.86 mi (910.67 km) |
| Olecko to Sinaia | 615.11 mi (989.93 km) |
| Olecko to Slatina | 668.79 mi (1,076.32 km) |
